ISSN:
0009-2940
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Transition Metal Carbene Complexes, XLVIII. cis-Bis[dimethylphosphino(ethoxy)carbene]tetracarbonylchromium(0) and -tungsten(0), Two Novel Biscarbene ComplexesWhen chromium- or tungstenhexacarbonyl are treated with lithiumdimethylphosphide in ether and successively with triethyloxonium tetrafluoroborate in methylenechloride cis-bis[dimethylphosphino(ethoxy)carbene]tetracarbonylchromium(0) and -tungsten(0), (CO)4M[C(OC2H5)P(CH3)2]2 (M = Cr, W). are obtained. The structures of the complexes have been ensured by means of their i.r., 1H-n.m.r. and mass spectra.
Notes:
Setzt man Chrom- oder Wolframhexacarbonyl nacheinander mit Lithiumdimethylphosphid in Äther und Triäthyloxonium-tetrafluoroborat in Methylenchlorid um, so erhält man cis-Bis[dimethylphosphino(äthoxy)carben]-tetracarbonyl-chrom(0) (1) und -wolfram(0) (2), (CO)4M[C(OC2H5)P(CH3)2]2 (M = Cr, W). Die Struktur der Komplexe konnte mit Hilfe der IR-, 1H-NMR- und Massenspektren gesichert werden.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19721050817
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